Application: plasmashell (5.23.3)

Qt Version: 5.15.3
Frameworks Version: 5.87.0
Operating System: Linux 5.11.0-40-generic x86_64
Windowing System: X11
Distribution: KDE neon User - Plasma 25th Anniversary Edition
DrKonqi: 5.23.3 [KCrashBackend]

-- Information about the crash:
- What I was doing when the application crashed:
Plasma crashed after exiting standby. 2 monitors are connected, some windows have moved from the second screen to the first

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault

[New LWP 3044]
[New LWP 3135]
[New LWP 3259]
[New LWP 3384]
[New LWP 3385]
[New LWP 3387]
[New LWP 3405]
[New LWP 3408]
[New LWP 5958]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
0x00007f54519ebaff in __GI___poll (fds=0x7ffc16262fb8, nfds=1, timeout=1000) at ../sysdeps/unix/sysv/linux/poll.c:29
__preamble__
[Current thread is 1 (Thread 0x7f544db409c0 (LWP 3025))]

Thread 10 (Thread 0x7f54231ee700 (LWP 5958)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55a8990a9d60) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55a8990a9d10, cond=0x55a8990a9d38) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55a8990a9d38, mutex=0x55a8990a9d10) at pthread_cond_wait.c:638
#3  0x00007f5451d805cb in QWaitConditionPrivate::wait (deadline=..., this=0x55a8990a9d10) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=this@entry=0x55a8984b1598, mutex=mutex@entry=0x55a8984b1590, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f54539e9c24 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x55a8984b1588) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x55a8984b14f0) at scenegraph/qsgthreadedrenderloop.cpp:936
#7  0x00007f54539ea099 in QSGRenderThread::run (this=0x55a8984b14f0) at scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007f5451d7a45c in QThreadPrivate::start (arg=0x55a8984b14f0) at thread/qthread_unix.cpp:329
#9  0x00007f5450cc9609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f54519f8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f53f220e700 (LWP 3408)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55a898133590) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55a898133540, cond=0x55a898133568) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55a898133568, mutex=0x55a898133540) at pthread_cond_wait.c:638
#3  0x00007f5451d805cb in QWaitConditionPrivate::wait (deadline=..., this=0x55a898133540) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=this@entry=0x55a897f51d98, mutex=mutex@entry=0x55a897f51d90, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f54539e9c24 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x55a897f51d88) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x55a897f51cf0) at scenegraph/qsgthreadedrenderloop.cpp:936
#7  0x00007f54539ea099 in QSGRenderThread::run (this=0x55a897f51cf0) at scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007f5451d7a45c in QThreadPrivate::start (arg=0x55a897f51cf0) at thread/qthread_unix.cpp:329
#9  0x00007f5450cc9609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f54519f8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f54109e9700 (LWP 3405)):
#0  0x00007f54519ebaff in __GI___poll (fds=0x7f53ec0071b0, nfds=1, timeout=2143159) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f545029736e in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f54502974a3 in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5451fbb61b in QEventDispatcherGlib::processEvents (this=0x7f53ec045210, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f5451f5f8ab in QEventLoop::exec (this=this@entry=0x7f54109e8ba0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#5  0x00007f5451d792c2 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007f542036b07c in KCupsConnection::run() () from /usr/lib/x86_64-linux-gnu/libkcupslib.so
#7  0x00007f5451d7a45c in QThreadPrivate::start (arg=0x55a897c335d0) at thread/qthread_unix.cpp:329
#8  0x00007f5450cc9609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f54519f8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f5435180700 (LWP 3387)):
#0  0x00007f54519ebaff in __GI___poll (fds=0x7f54280043d0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f545029736e in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f54502974a3 in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5451fbb61b in QEventDispatcherGlib::processEvents (this=0x7f5428000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f5451f5f8ab in QEventLoop::exec (this=this@entry=0x7f543517fba0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#5  0x00007f5451d792c2 in QThread::exec (this=this@entry=0x7f54380acfc0) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007f54539243fa in QQuickPixmapReader::run (this=0x7f54380acfc0) at util/qquickpixmapcache.cpp:1024
#7  0x00007f5451d7a45c in QThreadPrivate::start (arg=0x7f54380acfc0) at thread/qthread_unix.cpp:329
#8  0x00007f5450cc9609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f54519f8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f543cd43700 (LWP 3385)):
#0  0x00007f54519ee12b in __GI___select (nfds=40, readfds=0x7f543cd42ba0, writefds=0x0, exceptfds=0x0, timeout=0x7f543cd42b90) at ../sysdeps/unix/sysv/linux/select.c:41
#1  0x00007f5445d3e101 in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.470.82.00
#2  0x00007f5445d3bc2d in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.470.82.00
#3  0x00007f5450cc9609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#4  0x00007f54519f8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f5437fff700 (LWP 3384)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55a896d16814) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55a896d167c0, cond=0x55a896d167e8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55a896d167e8, mutex=0x55a896d167c0) at pthread_cond_wait.c:638
#3  0x00007f5451d805cb in QWaitConditionPrivate::wait (deadline=..., this=0x55a896d167c0) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=this@entry=0x55a89706f208, mutex=mutex@entry=0x55a89706f200, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f54539e9c24 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x55a89706f1f8) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x55a89706f160) at scenegraph/qsgthreadedrenderloop.cpp:936
#7  0x00007f54539ea099 in QSGRenderThread::run (this=0x55a89706f160) at scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007f5451d7a45c in QThreadPrivate::start (arg=0x55a89706f160) at thread/qthread_unix.cpp:329
#9  0x00007f5450cc9609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f54519f8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f543ffff700 (LWP 3259)):
#0  0x00007f545029525d in g_source_ref () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f5450295328 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f545029682b in g_main_context_prepare () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f545029729b in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f54502974a3 in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f5451fbb61b in QEventDispatcherGlib::processEvents (this=0x7f5438000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007f5451f5f8ab in QEventLoop::exec (this=this@entry=0x7f543fffebc0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#7  0x00007f5451d792c2 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#8  0x00007f545358a549 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f5451d7a45c in QThreadPrivate::start (arg=0x55a896098c90) at thread/qthread_unix.cpp:329
#10 0x00007f5450cc9609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#11 0x00007f54519f8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f5447fff700 (LWP 3135)):
#0  0x00007f54519ebaff in __GI___poll (fds=0x7f54400154b0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f545029736e in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f54502974a3 in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5451fbb61b in QEventDispatcherGlib::processEvents (this=0x7f5440000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f5451f5f8ab in QEventLoop::exec (this=this@entry=0x7f5447ffebb0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#5  0x00007f5451d792c2 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007f54528ecf4b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f5451d7a45c in QThreadPrivate::start (arg=0x7f5452970d80) at thread/qthread_unix.cpp:329
#8  0x00007f5450cc9609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f54519f8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f544cd5d700 (LWP 3044)):
#0  0x00007f54519ebaff in __GI___poll (fds=0x7f544cd5cae8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f54540fcc1a in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f54540fe90a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f544d487e88 in QXcbEventQueue::run (this=0x55a895e3a380) at qxcbeventqueue.cpp:228
#4  0x00007f5451d7a45c in QThreadPrivate::start (arg=0x55a895e3a380) at thread/qthread_unix.cpp:329
#5  0x00007f5450cc9609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f54519f8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f544db409c0 (LWP 3025)):
[KCrash Handler]
#4  0x00007f5453a2ec1c in QVector<QQuickItem*>::isEmpty (this=0x55a89680ba68) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qvector.h:90
#5  QQuickItem::polish (this=this@entry=0x55a897451ed0) at items/qquickitem.cpp:4437
#6  0x00007f5453a43768 in forcePolishHelper (item=0x55a897451ed0) at items/qquickwindow.cpp:470
#7  0x00007f5453a4372a in forcePolishHelper (item=0x55a896d53920) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qlist.h:570
#8  0x00007f5453a4372a in forcePolishHelper (item=0x55a896d44a70) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qlist.h:570
#9  0x00007f5453a4372a in forcePolishHelper (item=0x55a89653d520) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qlist.h:570
#10 0x00007f5453a4372a in forcePolishHelper (item=0x55a898ecbcf0) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qlist.h:570
#11 0x00007f5453a4372a in forcePolishHelper (item=0x55a898eca290) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qlist.h:570
#12 0x00007f5453a43793 in QQuickWindowPrivate::forcePolish (this=this@entry=0x55a896582c20) at items/qquickwindow.cpp:486
#13 0x00007f5453a4381b in QQuickWindow::handleScreenChanged (this=<optimized out>, screen=<optimized out>) at items/qquickwindow.cpp:464
#14 0x00007f5453a45e9d in QQuickWindow::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at .moc/moc_qquickwindow.cpp:297
#15 0x00007f5451f97e00 in doActivate<false> (sender=0x55a8976b52c0, signal_index=3, argv=0x7ffc16263ee0) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:395
#16 0x00007f5451f91197 in QMetaObject::activate (sender=sender@entry=0x55a8976b52c0, m=m@entry=0x7f54528b16a0 <QWindow::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffc16263ee0) at kernel/qobject.cpp:3946
#17 0x00007f5452347c43 in QWindow::screenChanged (this=this@entry=0x55a8976b52c0, _t1=<optimized out>, _t1@entry=0x55a895f260d0) at .moc/moc_qwindow.cpp:729
#18 0x00007f54523484c7 in QWindowPrivate::emitScreenChangedRecursion (this=this@entry=0x55a896582c20, newScreen=newScreen@entry=0x55a895f260d0) at kernel/qwindow.cpp:484
#19 0x00007f545234f5e6 in QWindowPrivate::setTopLevelScreen (this=0x55a896582c20, newScreen=0x55a895f260d0, recreate=<optimized out>) at kernel/qwindow.cpp:508
#20 0x00007f5452341228 in QGuiApplicationPrivate::processWindowScreenChangedEvent (wse=0x55a898ecb450) at ../../include/QtGui/../../src/gui/kernel/qwindow.h:98
#21 0x00007f5452345a44 in QGuiApplicationPrivate::processWindowSystemEvent (e=0x55a898ecb450) at kernel/qguiapplication.cpp:2029
#22 0x00007f545231d7ac in QWindowSystemInterface::sendWindowSystemEvents (flags=flags@entry=...) at kernel/qwindowsysteminterface.cpp:1169
#23 0x00007f544d488eae in xcbSourceDispatch (source=<optimized out>) at qxcbeventdispatcher.cpp:105
#24 0x00007f545029717d in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007f5450297400 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007f54502974a3 in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007f5451fbb602 in QEventDispatcherGlib::processEvents (this=0x55a895f46610, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#28 0x00007f5451f5f8ab in QEventLoop::exec (this=this@entry=0x7ffc162642e0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#29 0x00007f5451f67a64 in QCoreApplication::exec () at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#30 0x000055a894758cf5 in main (argc=<optimized out>, argv=<optimized out>) at ./shell/main.cpp:238
[Inferior 1 (process 3025) detached]

The reporter indicates this bug may be a duplicate of or related to bug 408030.

Possible duplicates by query: bug 408030, bug 389761, bug 386383.

Reported using DrKonqi